Figure 1.

The cumulative percentage of vertical CDR distribution among subjects able to complete visual field testing in a population survey³ in whom a reproducible visual field defect (glaucoma hemifield test “outside normal limits” and a four point cluster (p<5%) on the pattern deviation plot) was identified. The data shown here are based on 61 of 67 eyes. Fives eyes were excluded because lens opacity was sufficient to account for the field defect. One eye was excluded because diabetic retinopathy was present. Several eyes with severe visual field loss were not able to produce a reliable visual field test result.